JPH07113306A - Vertical joint structure - Google Patents

Abstract

PURPOSE:To improve waterproofness by making a vertical joint structure a complete surface water stop structure and provide it with much fire resistance and heat insulation property. CONSTITUTION:Right and left ends of a construction panel D are laid on the installation face 6 of a joiner C, and right and left ends of a joint plate B are fixed on the surface material 9 of the construction panel D in such a way that the approximate center of the joint plate B which formes a contact face 5 by bending its both ends upward and the rising parts 7 of the joiner C face to each other via a fire resistant heat insulating material E. The fixing groove 2 of a decorative cover A is brought into contact with and fixed on the approximate center of the joint plate B which forms the contact faces at both ends, and an extrusion material H such as EPDM is formed in the fixing groove 2 of the decorative cover A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of vertical joints formed when connecting building panels (hereinafter simply referred to as "panels") useful for constructing an outer wall and an inner wall of a building. More specifically, the present invention relates to a vertical joint structure that has improved waterproofness as a complete surface waterproof structure, and has excellent fire resistance and heat insulation.

[0002]

2. Description of the Related Art Conventionally, as a structure for accommodating vertical joints of this type, as shown in FIG.
A fixing tool β is used on the upper part of the panel c to cover the end of the panel c with a long decorative cover a made of a thin iron plate and having a hat-shaped cross section, and a joiner b. ₁ and the projecting portions b _{1 of the} joiner b are opposed to each other and connected by a fixing tool β such as a blind rivet, and the back surface of the panel c on both left and right sides, the back surface of the decorative cover a, and the groove on the fixing tool β are backed up. The method of filling with d and the sealing material e has been generally performed.

[0003]

However, in the conventional structure as described above, only the iron plate, the backup material d, and the sealing material e are provided in the vertical joints, and the joints are extremely inferior in heat insulation and airtightness. The heat bridge between the decorative cover a and the joiner b causes a problem, and dew condensation occurs on the back surface of the joiner b, or the structure is weak in strength against heat of a flame such as a fire. Therefore, in such a joint structure which is the weakest point in the wall structure, it is a vertical joint structure that cannot pass the structural certification test of JIS-A-1304 (Fireproof test method for building structure part) for 1 hour. . Further, when the backup material d is formed, the position where the backup material d is formed becomes deeper or shallower because the position is not accurate, so that the embedded thickness of the sealing material e changes and the waterproof property is improved. The structure was a vertical joint structure with problems in properties and adhesive strength. Further, waterproofing is limited to the backup material d and the sealing material e, and if rainwater or the like intrudes, rainwater or the like will intrude into the body.

[0004]

According to the present invention, in order to eliminate such a drawback, the end portions of the left and right panels are laid on the installation surface of the joiner, and the approximate center of the joint board is the rising portion of the joiner. The left and right edges of the joint plate are fixed to the surface material of the panel so that they face each other through the fireproof heat insulating material, and the fixing groove of the decorative cover is set approximately in the center of the joint plate with contact surfaces at both ends. Since it has a structure in which the joints are in contact with each other and fixed, and extruded materials such as EPDM are formed in the fixing groove of the decorative cover to form vertical joints, the vertical joints are covered with two members, a joint plate and a decorative cover, and waterproof. In addition to improving heat resistance, airtightness, strength, and design, a fireproof heat insulating material interposed between the joint board and the joiner completely separates the front and back sides of the vertical joints to prevent thermal bridges. As a result, mainly the fire resistance of the vertical joints, It improves the thermal performance and prevents the occurrence of dew condensation, so that even in the unlikely event of a fire, the heat of the flame generated from the inside of the building or from outside is blocked from being transmitted to the outside or inside, The present invention proposes a vertical joint structure having a performance that passes the fireproof 1 hour test of JIS-A-1304 (fireproof test method for building structures).

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A typical example of the vertical joint structure according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view showing the above structure, which includes a decorative cover A, a joint plate B, a joiner C, a panel D, a fireproof heat insulating material E, a backup material F, a sealing material G, an extruded material H such as EPDM, a wall base α, It is a structure including a fixture β.

The makeup cover A is, for example, as shown in FIG.
Iron, aluminum, copper, stainless steel, titanium, aluminum
Roll forming of zinc alloy plated steel plate, enamel steel plate, clad steel plate, laminated steel plate (PVC steel plate, etc.), sandwich steel plate (damping steel plate, etc.) It is formed into various shapes by press molding, extrusion molding, or extruded from various plastic resins, aluminum alloys, etc., and is a steel plate with a thickness of 0.27 mm or more for a joint structure of fireproof structure. It is formed by processing a class.

The cross-sectional shape of the decorative surface 1 is substantially horizontal.
The fixing groove 2 is formed by projecting a substantially central portion of the decorative surface 1 downward and in a substantially concave shape, and the abutting surface 3 in which both ends of the decorative surface 1 are bent inward in a substantially L shape. It is composed of a long body formed in a hat shape. In the figure, both ends are folded back inward to form a tongue piece 3a in order to prevent danger.

The decorative cover A covers a joint plate B and a fixture β, which will be described later, and mainly functions as a decorative material and waterproof material for the vertical joints. Further, the decorative surface 1 also functions as a bonding portion of the sealing material G when the gap between the rear surface and the surface material 9 of the panel D described later is filled with the backup material F and the sealing material G. The fixing groove 2 is a portion to be fixed by using a fixing tool β such as a blind rivet as shown in FIG. 1, and is a portion to form an extruded material H such as EPDM described later.

Reference numeral 2a is a groove, which is formed so as to ensure the position where the fixing tool β is set and to prevent the fixing tool β from shifting left and right.

As shown in FIG. 3, for example, the joint plate B is made of the same material as that of the decorative cover A. Particularly, for a joint structure having a fireproof structure, steel plates having a thickness of 0.27 mm or more are used. It is formed by processing.

The sectional shape is such that a horizontal holding surface 4 and both ends of the holding surface 4 are bent upward to form a contact surface 5.

As shown in FIG. 1, the holding surface 4 is a portion which is brought into contact with a surface material 9 of a panel D, which will be described later, and which is fixed to the surface material 9 of the panel D through a fixing tool β such as a blind rivet. It is a part that covers the vertical joints and functions as a waterproof material and an airtight material.

As shown in FIG. 1, the contact surface 5 ensures the formation position of the backup material F and makes the formation position of the backup material F constant. To reduce the amount of the backup material F used and to keep the adhesive strength constant. Also,
This is to prevent bending during transportation.

Further, the concave groove 4a of the concave stripe formed on the holding surface 4
Is a fixing tool β such as a blind rivet as shown in FIG.
In addition to showing the driving position, the groove 2a of the decorative cover A is supported by the central recessed groove 4a, which is effective in ensuring the construction position and improves the construction workability.

Joiner C is, for example, as shown in FIG.
The same material as the above-mentioned makeup cover A is used,
Particularly, in order to form a joint structure of a fireproof structure, a steel plate having a thickness of 0.27 mm or more is processed and formed. In addition, the cross-sectional shape is formed in a hat shape from a horizontal installation surface 6 and a rising portion 7 that protrudes upward in a substantially central portion of the installation surface 6 and in a substantially convex shape.

The joiner C functions as a base material for the vertical joints, and as shown in FIG.
Are continuously installed in the vertical direction, and the installation surfaces 6 on both sides are fixed to the wall foundation α using a fixing tool β such as a self-drilling screw screw. The installation surface 6 is a portion on which the panel D is laid, and also functions as a base plate, a waterproof plate, and an airtight plate for the vertical joints.

The rising portion 7 functions as a guide when laying the panel D on the installation surface 6, and the upper portion is also a portion facing the joint board B through the fireproof heat insulating material E.

Further, in the figure, in order to prevent danger, a tongue piece 8 in which both end edges of the installation surface 6 are folded back to the front side is formed. Further, the tongue piece 8 functions as a rain catcher and promptly discharges it toward the base even if rainwater or the like flows in from the surface of the panel D. The purpose of this is to prevent corrosion and to prevent the formation of dew condensation, mites and molds.

The panel D is shown in FIGS. 5 (a) and 5 (b), for example.
As shown in (a-a sectional view taken along the line aa in FIG. 6A), the front surface member 9 and the rear surface member 1 in which the end portions are bent inward to form the box folding piece 9a.
It is a dry wall material having a sandwich structure in which the core material 11 is sandwiched and integrated with 0, such as a long horizontal stretch, a long vertical stretch, a box-shaped panel D, or a ceramic siding material, an ALC board, and a PC. It is a fireproof wall material such as a plate.

The surface material 9 is made of the same material as the decorative cover A. Further, the surface material 9 also functions as a fixing portion of the joint board B in the vertical joint portion.

The backing material 10 is the same metal material as the surface material 9, or asbestos paper, kraft paper, asphalt felt, metal foil (Al, Fe, Pb, Cu), synthetic resin sheet, rubber sheet, cloth sheet, gypsum paper. , Aluminum hydroxide paper,
One type of glass fiber non-woven fabric, or a laminate of two or more types, or a fireproof sheet subjected to waterproof treatment, flame retardant treatment, or the like.

The core material 11 is a resole-type phenol foam, polyisocyanurate foam, polyurethane foam, vinyl chloride foam, polyethylene foam, polystyrene foam, urea foam, or the like, or a refractory material such as inorganic lightweight aggregate or inorganic fiber. It is composed of mixed materials. Of course, it is also possible to use ultra-high density phenol foam to further improve the fire resistance.

Reference numeral 12 is an inorganic material, for example, calcium silicate board, calcium carbonate board, gypsum board, perlite cement board, rock wool board, slate board, ALC board, P
One or more kinds of C plate, other inorganic lightweight body, inorganic lightweight foam, or composite plate thereof are integrally interposed in the male and female connecting portions at the upper and lower ends of panel A.
Further, D ₁ is an inorganic sheet for improving the airtightness between the connecting portions, fire resistance (preventing invasion of flame), and the like.

As shown in FIG. 1, the fireproof heat insulating material E is to be inserted into the groove formed by the end portions of the left and right panels D and the rising portion 7 of the joiner C, and is made of metal. By separating the main plate B and the joiner C and preventing thermal bridges, mainly to improve the fire resistance, heat resistance and heat insulation of the vertical joints, to improve fire protection and prevent the formation of dew condensation. Is. In this way, even in the unlikely event of a fire, the heat and smoke of the flame generated from the inside or outside of the building will be blocked from being transmitted to the outside or inside, and the vertical joint structure will pass the fireproof 1 hour test. Is something that can be done.

The materials of the fireproof heat insulating material E include rock wool felt, ceramic wool, glass wool, asbestos,
Any material having a regular or irregular fire resistance such as gypsum board, water glass bond, ALC, calcium silicate, calcium carbonate, various inorganic foams, ultra-high density phenol foam, and inorganic fire-resistant caulking material may be used.

The backup material F fills the space between the front surface of the panel D and the back surface of the decorative surface 1 of the decorative cover A, and functions as a filling material for preventing the three-point adhesion of the sealing material G described later. Is. Examples of the material thereof include foamed polyethylene, chloroprene rubber, EPT rubber, synthetic rubber beads, bond breakers and the like which are generally commercially available.

The sealing material G functions as a waterproof material which is filled on the above-mentioned backup material F to complete a complete surface water-stop structure, and is generally used for two-component silicone-based or inorganic fire-resistant caulking. These are commercially available, and include silicone type (reaction curing type, moisture curing type), modified silicone type (reaction curing type), polysulfide type (reaction curing type), polyurethane type (reaction curing type,
It is made of moisture-curable type, SBR type (dry-curable type), acrylic type (dry-curable type), or the like. Of course, a primer (not shown) is applied to the adhesive surface of the sealing material G to improve the adhesive strength.

The extruded material H such as EPDM is as shown in FIG. 6, and generally, for example, EPDM, EPM, polyvinyl chloride type, chloroprene type, chlorosulfonated polyethylene type, ethylene propylene type, asphalt impregnated polyurethane. One of elastic type such as polybutene type, polypropylene type, butyl type and rubber asphalt type is used. Especially Figure 1
When weather resistance and heat resistance are required to form on the exposed part as shown in, use EPDM etc. that have excellent weather resistance, heat resistance, ozone resistance, chemical resistance, etc. To do. The recess H ₁ is provided to accommodate the head of the fixture β, and is formed by the head of the fixture β so that the extruded material H such as EPDM is not deformed.

Next, the vertical joint structure according to the present invention will be briefly described through construction examples. First, as shown in FIG. 7, an H-shaped steel material, a rectangular steel material, and a C-shaped steel material, which are provided in the vertical direction,
For the wall base α, which is made of steel frame base such as shaped steel and L-shaped steel,
The installation surfaces 6 on both sides of the plurality of joiners C are fixed in parallel with a fixing tool β such as a screw screw. In addition, the wall base α is provided in advance so as to correspond to the mounting length of the panel D and is arranged at a position where a vertical joint is formed.

Next, as shown in FIG. 8, the rising portions 7 are used as guides on the installation surface 6 of the joiner C, and the metal-based panels D are sequentially stretched horizontally from the base direction to the eaves direction and fixed on both sides. Then, as shown in FIG. 9, the concave groove surrounded by the rising portion 7 of the joiner C and the end portion of the panel D is filled with the refractory heat insulating material E.

Further, as shown in FIG. 10, the holding surface 4 of the joint plate B and the surface material 9 of the panel D are fixed on the filled fireproof heat insulating material E by using a fixing tool β such as a blind rivet. , The joint plate B is attached and fixed to the surface material 9 of the panel D.

After that, as shown in FIG. 11, the fixing groove 2 of the decorative cover A is brought into contact with the joint plate B and fixed with a fixing tool β such as a blind rivet, and the decorative cover A is mounted and fixed to the joint plate B. .

Finally, as shown in FIG. 1, a space between the surface of the panel D and the contact surface 3 of the decorative cover A is filled with a backup material F made of polyethylene foam and a silicone-based sealing material G, and at the same time, the decorative cover. By continuously forming the extruded material H such as EPDM in the fixed groove 2 of A,
It forms a vertical joint structure with a complete surface waterproofing structure.

By forming the vertical joints in this manner, the vertical joints are covered with the two members of the joint plate B and the decorative cover A, so that waterproofness, airtightness, designability and mechanical strength are improved. With the fireproof heat insulating material E interposed between the joint plate B and the joiner C, the front side and the back side of the vertical joints are completely separated, preventing a thermal bridge, and mainly the fire resistance of the vertical joints, It is intended to improve heat insulation and prevent dew condensation. In this way, even in the unlikely event of a fire, the heat of the flame generated from inside or outside the building is blocked from being transmitted to the outdoor side or the indoor side, and JIS-A-1304 (fire resistance test method for building structures) The vertical joint structure can pass the fireproof 1 hour test.

[0035]

[Other Embodiments] The above is one embodiment of the vertical joint structure according to the present invention, which can be formed as shown in FIGS. That is, in FIG. 12, the inorganic sheet D ₁ is formed on the joiner C to prevent the formation of voids between the joiner C and the panel D to prevent the entry of flames, and at the same time, heat due to a fire or the like is transmitted to the joiner C. Is to prevent. Examples of the material thereof include rock wool felt, ceramic wool, glass wool, asbestos, gypsum board, water glass bond, various inorganic foams, ultra-high density phenol foam, and inorganic fire-resistant caulking agent.

Further, FIG. 13 shows that the inorganic sheet D ₁ is formed between the panel D and the joint plate B to further improve the fire resistance. As described above, according to the vertical joint structure in which the inorganic sheet D ₁ is formed, the fire resistance is further improved, and the JIS-A-13
A vertical joint structure that reliably passes the fireproof 1-hour test of 04 (fireproof test method for building structures).

Further, FIGS. 14A to 14C are cross-sectional views showing another embodiment of the decorative cover A, FIGS.
(E) shows another embodiment of the joint board B,
In particular, FIG. 15 (a) shows that the groove 4b is formed and inserted into the space of the vertical joint to prevent the mounting position from being displaced, thereby improving the workability.

16 (a) to 16 (f) are sectional views showing another embodiment of the extruded material D such as EPDM.

[0039]

As described above, according to the vertical joint structure of the present invention, the fixture does not appear at all on the external appearance of the wall body, and the surface is still waterproof. Since a fireproof heat insulating material is interposed between the joint board and the joiner, the heat insulating property and airtightness of the joint portion are improved, and the front side and the back side of the vertical joint portion are completely separated to prevent a thermal bridge and dew condensation. Moreover, the vertical joints, which are the weakest points against heat, are strengthened, and JIS-A-1
It becomes a vertical joint structure that passes the fireproof 1 hour test of 304 (fireproof test method of building structure part). Even if the core material is an organic material such as a synthetic resin foam (phenolic foam or the like), a vertical joint structure that passes the fireproof 1 hour test is obtained.
There are two members, a decorative cover and a joint plate, on the surface side of the vertical joint, and both ends of the joint plate in the width direction are fixed to the end of the mouth of the building panel, so it is waterproof, airtight, and strong. Excellent vertical joint structure. Due to the impact and vibration of the mounting of the fixture, the decorative cover, which is the surface decorative material, does not have pecks, distortions, bends, etc., and no skill is required for construction. Since the contact surface is formed at the end of the joint plate, the backup material and the sealing material can be easily planted, and the workability is improved.
Since the extruded material such as EPDM is formed in the fixing groove to cover the head of the fixing tool, the waterproofness is sure and the rusting of the fixing tool can be prevented. Since a space is formed between the contact surface of the decorative cover and the contact surface of the joint plate, it is possible to prevent the capillary phenomenon and further improve the waterproof property. There are characteristics and effects.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a typical example of a vertical joint structure according to the present invention.

FIG. 2 is a perspective view showing an example of a decorative cover used in the above structure.

FIG. 3 is a perspective view showing an example of a joint plate used in the above structure.

FIG. 4 is a perspective view showing an example of a joiner used in the above structure.

FIG. 5 is a perspective view and a cross-sectional view showing an example of a building panel used in the above structure.

FIG. 6 is a perspective view showing an example of an extruded material such as EPDM used in the above structure.

FIG. 7 is a cross-sectional view showing a construction state of the vertical joint structure according to the present invention.

FIG. 8 is a cross-sectional view showing a construction state of the vertical joint structure according to the present invention.

FIG. 9 is a cross-sectional view showing a construction state of the vertical joint structure according to the present invention.

FIG. 10 is a cross-sectional view showing a construction state of the vertical joint structure according to the present invention.

FIG. 11 is a cross-sectional view showing a construction state of the vertical joint structure according to the present invention.

FIG. 12 is a cross-sectional view showing another embodiment of the vertical joint structure according to the present invention.

FIG. 13 is a sectional view showing another embodiment of the vertical joint structure according to the present invention.

FIG. 14 is a cross-sectional view showing another embodiment of the decorative cover.

FIG. 15 is a cross-sectional view showing another example of the joint plate.

FIG. 16 is a cross-sectional view showing another embodiment of an extruded material such as EPDM.

FIG. 17 is an explanatory diagram showing a conventional example.

[Explanation of symbols]

A Decorative cover B Joint plate C Joiner D Architectural panel D ₁ Inorganic sheet E Fire-resistant heat insulating material F Backup material G Sealing material H Extruded material such as EPDM H ₁ Recess α Wall base β Fixing tool 1 Decorative surface 2 Fixing groove 2a Groove 3 Contact surface 3a Tongue piece 4 Holding surface 4a Recessed groove 4b Groove 5 Contact surface 6 Installation surface 7 Rising portion 8 Tongue piece 9 Surface material 9a Box folding piece 10 Backside material 11 Core material 12 No material

Claims (1)

[Claims] 1. A vertical joint structure formed when a wall is formed by a building panel in which a core material is sandwiched between a front surface material and a back surface material, and a decorative surface having a substantially horizontal section and a substantially central portion of the decorative surface. A decorative cover which is formed in a reverse hat shape from a fixing groove protruding downward and in a substantially concave shape and which is formed in a long shape from an abutting surface whose end portion is bent inward in a substantially L shape. ,
A joint plate formed in a long shape from a horizontal plane holding surface and abutting surfaces having both ends in the width direction of the holding surface bent upward, an installation surface having a substantially horizontal section and a substantially central portion of the installation surface. Above and
From a rising portion that protrudes in a substantially convex shape, a joiner made of a long body formed in a hat shape is provided, and the end portions of the left and right building panels are laid on the installation surface of the joiner. The left and right edges of the joint plate are fixed to the surface material of the building panel so that the approximate center and the rising part of the joiner face each other through the fireproof heat insulating material, and the fixing groove of the decorative cover is set approximately in the center of the joint plate. A vertical joint structure, which is fixed in contact with the decorative cover, and extruded material such as EPDM is formed in a fixing groove of the decorative cover to form a vertical joint.